drm/i915: get a runtime PM reference when the panel VDD is on
And put it when it's off. Otherwise, when you run pm_pc8 from intel-gpu-tools, and the delayed function that disables VDD runs, we'll get some messages saying we're touching registers while the HW is suspended. Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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@ -1094,6 +1094,8 @@ void ironlake_edp_panel_vdd_on(struct intel_dp *intel_dp)
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if (ironlake_edp_have_panel_vdd(intel_dp))
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return;
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intel_runtime_pm_get(dev_priv);
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DRM_DEBUG_KMS("Turning eDP VDD on\n");
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if (!ironlake_edp_have_panel_power(intel_dp))
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@ -1143,6 +1145,8 @@ static void ironlake_panel_vdd_off_sync(struct intel_dp *intel_dp)
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DRM_DEBUG_KMS("PP_STATUS: 0x%08x PP_CONTROL: 0x%08x\n",
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I915_READ(pp_stat_reg), I915_READ(pp_ctrl_reg));
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msleep(intel_dp->panel_power_down_delay);
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intel_runtime_pm_put(dev_priv);
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}
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}
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@ -1250,6 +1254,9 @@ void ironlake_edp_panel_off(struct intel_dp *intel_dp)
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intel_dp->want_panel_vdd = false;
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ironlake_wait_panel_off(intel_dp);
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/* We got a reference when we enabled the VDD. */
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intel_runtime_pm_put(dev_priv);
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}
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void ironlake_edp_backlight_on(struct intel_dp *intel_dp)
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